Shade-fixture



FRANK GRISIUS, GE MILVVAUKEE, WISCONSIN. I

SHADE-FIXTURE.

T 0 all whom 2'25 may concern:

Be it known that I, FRANK GnIsIUs, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of l/Visconsin, have invented certain new and useful Improvements in Shade- Fixtures; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention pertains to new and useful improvements-in shade fixtures, particularly those adapted to control the movements of a shade roller for maintaining the shade in various positions. 7

g The primary object of this invention is to provide an arrangement by which the roller of a window shade may be made to revolve in a direction to roll the shade up on the same when a cord is pulled, and the revolutions of said roller may be stopped at any point at any time by simply carrying f the end of the cord toward or away from the adjacent edge of the shade and out of a vertical line extending from the pulley element of the arrangement. In this connection provision is made for permitting the shade to readily unroll from the roller to any desired length and then to be surely stopped and held.

A further object of the invention relates to the provision of an interchangeable pulley which may be used on either end of a shade roller, and with either a right or left hand bracket. I

An additional object of the invention is to construct certain other elements of the device from sheet metal whereby the cost of manufacture will be materially decreased.

With these objects in view the invention resides in the novel features of construction. combination and arrangement of parts which will be hereinafter very particularly described and claimed and shown in the drawing, wherein:

Figure 1 represents an elevational view of one end of a shade rol er and shade havin; my invention applied thereto;

Fig. 2 is a similar view showing the-arrangement of one of my improved devices at the opposite end of a shade roller;

Fig. 3 is a vertical sectional view taken on the plane of the line 33 of Fig. 1;

5 in Fig. 4.

Specification of Letters Patent. Patented Feb. 10, 1920 Application filed August 1919. Serial No. 319355. Y

fore, the most important, and likewise the most expenslve element 1n this lnventlon 1s adapted for use at either end of a roller in connection with cooperating elements which may be less expensively manufactured. Reference is made to the pulley 1, it having annular flanges 3 and 4t. A trunnion 5' extends centrally from each opposite side of the pulley, and each of these trunnions is alike so as to make the pulley interchangeable. In other words, the portion of'each trunnion adjacent its connection with the pulley is cylindrical, as shown at 5?, While section, preferably rectangular, as shown at The brackets 6 that are used in connection with the pulleys 1 are preferably similarly constructed, except that one isused for the left hand end of a shade roller'Z, whereas the other is adapted for use at the right hand end of the latter; In either casethe bra ket is formed from a substantially a central annular groove 2, thus forming '75 the free end portions are polygonal in cross rightangular blank of relativelylightgage sheet metal having one end portion bent form the brackets are provided with bear-v ine' openings for the reception of the cylin drical portions 5* of the trnnnions 5.

A pulley 1 is non-rotatively fixed to'either endof the shade roller 7 by means of the rectangular ends 5 of the trnnnions. and an attachingjnlate 10. From Fig. 5 it will laterally as ati8 to provide an"attaching be seen that the plate 10 is also formed of.

sheet material, the central socket 11 therein in operations er this character. The socket 11 being of substantially the same size and shape as the portions 5 of the trunnlons, the pulley will be removably connected with the shade roller 7 when the parts cooperate I as indicated in Figs. 1 and 2. I I V An endlesscord 12 is disposed around the pulley and normally rests in the annular groove therein. When, however, it is desired tolock the shade roller in any one of n'umerous'positions, his cord 12 is moved laterally out of a vertical line extending from the groove 2 and into any one of several diagonal grooves 13 which are cut in the flange 3. 'By moving the cord in this manner, rotation of the shade roller will cause said cord to be gripped between the bottom of the groove 13 in which it rests and the'locking finger 9.

The'operation of the invention is substantially as follows: to lower the curtain, the

operator will grasp the lower portion of the cord 12 and permit the lower end of the shade to descend by gravity as it unrolls from theroller 7, letting the cord gradually slip through his fingers until the curtain or shade G has been lowered to the'point desired, whereupon he will carry the lower portion of the cord toward or away from the edge of the shade, which will cause the former to ride into either of the diagonal grooves. 13. Then upon rotation of the pulley, slightly in va proper direction, the cord will be clamped beneath said locking finger 9, as above explained. In raising the shade, the endless ,cord 12, after being released frombeneath the locking finger 9, is pulled in a direction which will cause a rotation of the roller 7 to wind up the shade, and after the bottom of the same has attained a proper height, the cord is again shifted to dispose it in one of the diagonal grooves 13 for subsequent clamping beneath the locking finger 9 ,The operations of raising and lowering the shade are practically identical, regardless of whether the pulley 1 is connected with the right hand end or the left hand end of the shade roller. In other words, in both cases the endless cord 12- is moved laterally into one of the grooves 13 when it is desired to retain theroller in one of its several, adjusted positions. The fact that the pulley is capable of use at either end of a shade roller, obviously greatly lessens the cost ofthedevice and reduces the number of being polygonal parts v-r rich it would otherwise be necessary to keep on hand.

Various minor changes may be made in the form and proportions of the several parts or the device to accommodate them for use on rollers of different types, or for other purposes, these changes being within the scope of the invention, as outlined inthe appended claims.

I claim:

1. The combination with a roller, of a bracket, a pulley having oppositely extending trunnions, one being 1ournaled in said bracket, the other being detachably fixed to one end of the roller, and a flexible operat ing member disposed around the pulley.

V 2. The combination with a roller, having a polygonal socket in one end, a bracket having a bearing opening, a pulley having oppositely extending trunnions, one being rotatory engagement in the roller socket,

and a flexible operating member disposed around the pulley.

i. The combination with a roller, of a bracket comprising a substantially right-- angular blank of sheet material having one end'bent laterally to form an attachingportion, the other end being bent laterally in an opposite direction to provide a locking finger, the intermediate portion of the blank having a bearing opening, a-flange pulley fixed to one end of the" roller, and ournaled in the bearing opening, one flange of the pulley having adiagonal groove Commune eating with the annular groove therein, and a flexible operating member normally disposed in said annular. groove and movable into said diagonal groove to be clamped between the bottom thereof and said locking finger. v

In testimony that I claim the foregoing I have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

FRANK GRISIUS. 

